Don't know how :( They get created as I make an archive of a folder and then are included in the .zip file... stupid mac (not really, actually I love it), and stupid me for not knowing what to do against it :/

Please include the original license. You should simply add your name to it, similar like you did in your readme. But you need to "share alike", wich means you need to make clear to everyone that this work is released under CC nc-by-sa.

actually they are a bit weird
either all the models except bullets are overbright, or the bullets are subtle
the bullet's skin isn't centered like the other ones, and it glows too much
and with the Trooper edition they are really nice to implement